Home / 404,397.10-558,078.68-223,111.40

Finding the Fourth Proportional to 404,397.10, 558,078.68 and 223,111.40

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Solution

The fourth proportional to 404,397.10, 558,078.68 and 223,111.40 is: 307,899.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    404,397.10 : 558,078.68 = 223,111.40 : x
  2. Step 2: Convert to fraction form
    404,397.10/558,078.68 = 223,111.40/x
  3. Step 3: Cross multiply
    404,397.10x = 558,078.68 × 223,111.40
  4. Step 4: Simplify right side
    404,397.10x = 124,513,715,604.95
  5. Step 5: Solve for x
    x = 124,513,715,604.95/404,397.10
  6. Step 6: Final answer
    x = 307,899.63

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.